Title :
Wide temperature-range singlemode operation of MQW gain-coupled DFB lasers
Author :
Makino, Tatsuya ; Lu, Hai-Han
Author_Institution :
Bell-Northern Res., Ottawa, Ont.
fDate :
11/10/1994 12:00:00 AM
Abstract :
Singlemode operation with a sidemode suppression ratio of 48 dB in the temperature range 10-100°C is reported for 1.3 μm gain-coupled DFB lasers consisting of an MQW active grating. The threshold current as a function of temperature exhibits a minimum in a room temperature range (infinite characteristic temperature T0). The physical mechanism for the appearance of this minimum is explained by a theoretical model
Keywords :
Debye temperature; distributed feedback lasers; laser modes; quantum well lasers; 1.3 mum; 10 to 100 C; MQW active grating; MQW gain-coupled DFB lasers; gain-coupled DFB lasers; infinite characteristic temperature; physical mechanism; sidemode suppression ratio; threshold current; wide temperature-range singlemode operation;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19941358
